<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<dl id="app">
    <dt>java</dt>
    <dd>javaSE</dd>
    <dd>javaEE</dd>
</dl>

<script>
    let dl = document.getElementById("app");
</script>

</body>
</html>